Anything logged while this happens? > On Oct 3, 2016, at 10:52 PM, Stephen Fulton <s...@lists.esoteric.ca> wrote: > > Hi all, > > I have run into a number of forwarding failure events on ASR1K's with 10G > SPA's. These have occurred across a range of IOS-XE versions, using various > ROMMON versions and across two different ASR1K platforms (1002's and 1004's). > Multiple SPA's have been replaced, IOS-XE versions and ROMMON versions > upgraded and in the case of the ASR1004's, SIP's replaced (both SIP10 and > SIP40's). TAC cases have been opened several times. > > What occurs is forwarding across an interface fails completely. The easiest > way to find it is the lack of ARP entries on the interface/sub-interface, due > to time-outs, but traffic is still attempting to traverse the interface. > When I ping the IP address associated with the failed interface, it fails. > ARP resolution of any neighbors fails, and neighboring devices on the same > broadcast domain cannot reach it - though will see its MAC in the ARP table. > > In all cases, ISIS and MPLS was configured on the interfaces. BFD has been > on some, not on others. > > I recently found learned of another organization that saw the same behavior > on an ASR1006 with 10G SPA's. SPA's and SIP's were replaced and the last > advice they received from TAC was that if it occurred again the chassis would > need to replaced. It did but they chose not to replace the chassis and > simply stopped using 10G entirely. > > Has anyone else seen this? > > -- Stephen > > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/
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